CN110026476B - Slat piercing press convenient to change drift - Google Patents
Slat piercing press convenient to change drift Download PDFInfo
- Publication number
- CN110026476B CN110026476B CN201910324433.5A CN201910324433A CN110026476B CN 110026476 B CN110026476 B CN 110026476B CN 201910324433 A CN201910324433 A CN 201910324433A CN 110026476 B CN110026476 B CN 110026476B
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- plate
- punching
- assembly
- positioning
- holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
- B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to the technical field of stamping. Aim at provides a good slat piercing press of being convenient for change drift of stability. The technical scheme adopted by the invention is as follows: a lath punching machine convenient for replacing a punch comprises a frame, a conveying device and a punching device; the punching assembly comprises an installation seat plate fixed on a lifting block of the punching device and a plurality of punches arranged on the installation seat plate, a positioning edge extending along the length direction of the installation seat plate is arranged in the middle of the bottom surface of the installation seat plate, the cross section of the positioning edge is trapezoidal, a plurality of positioning grooves are uniformly arranged on the positioning edge along the length direction of the positioning edge, and first connecting holes are formed in the installation seat plate on the two sides of each positioning groove; the punch is composed of an installation section and an impact section located at the bottom of the installation section, and the installation section is in an inverted pi shape and matched with the positioning groove. The invention has good installation stability and greatly reduces the risk of damage to the punch and the installation seat plate.
Description
Technical Field
The invention relates to the technical field of punching, in particular to a continuous punching machine.
Background
The punching machine is a processing device widely adopted in the processing process of the strip-shaped plate, connecting holes, mounting holes, radiating holes, lightening holes, abdicating holes and the like with various specifications and sizes can be formed on the strip-shaped plate in a punching mode, the automation level of the processing of the strip-shaped plate is greatly improved, and the labor intensity of workers is reduced. However, it still has certain defects in the using process.
1. When the existing punching machine works, a batten workpiece gradually passes through a station right below a punch under the action of a feeding device, and the punch is pressed down under the driving action of a hydraulic system and a pneumatic system and punches the workpiece together with a female die on the station. However, in the sliding process of the workpiece, the workbench and the female die are inevitably abraded, so that the service life of the punching machine is influenced, the workpiece is easily damaged, particularly, for some veneer boards with high appearance quality requirements, follow-up treatments such as remedial polishing, grinding, paint repair and the like have to be carried out, and the processing efficiency is seriously influenced.
2. In order to adapt to different punching requirements and facilitate the replacement of the punch, the punch of the existing punching machine basically adopts a detachable installation mode. However, for a workpiece with a large plate thickness, the stress at the joint of the punch and the mounting seat cannot be uniformly released due to excessive pressure between the punch and the mounting seat, and the punch is easily damaged or the mounting seat is easily deformed.
3. In the in-process of punching a hole, can produce more waste material, along with continuous production's going on, the quantity of waste material is more and more, and the mode that adopts at present mainly is that the staff regularly clears up, and this has increased staff's intensity of labour undoubtedly, has also increased the emergence probability of potential safety hazard.
Disclosure of Invention
The invention aims to provide a lath punching machine with good stability and convenient punch replacement.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a lath punching machine convenient for replacing a punch comprises a frame, a conveying device and a punching device;
the machine frame is enclosed by a bottom plate, a left side plate, a right side plate and a top plate, a workbench is arranged in the machine frame and is installed on the bottom plate through a supporting upright post, a female die is arranged in the middle of the workbench, and the top surface of the female die is flush with the top surface of the workbench; the punching device is arranged on the top plate, and a punching assembly of the punching device is opposite to the female die; the strip-shaped steel plate is positioned between the female die and the punching assembly, and intermittently moves from the front end to the rear end of the rack under the conveying of the conveying device, and the punching assembly of the punching device presses downwards to punch the strip-shaped steel plate in the intermittent period of conveying of the strip-shaped steel plate;
the punching assembly comprises an installation seat plate fixed on a lifting block of the punching device and a plurality of punches arranged on the installation seat plate, a positioning edge extending along the length direction of the installation seat plate is arranged in the middle of the bottom surface of the installation seat plate, the cross section of the positioning edge is trapezoidal, a plurality of positioning grooves are uniformly arranged on the positioning edge along the length direction of the positioning edge, and first connecting holes are formed in the installation seat plate on the two sides of each positioning groove; the punch is composed of a mounting section and an impact section positioned at the bottom of the mounting section, the mounting section is in an inverted pi shape and is matched with the positioning groove, and a second connecting hole is formed in the position, corresponding to the first connecting hole, of the mounting section; the installation section is clamped in the positioning groove and is connected with the installation seat plate through fastening bolts penetrating through the first connecting hole and the second connecting hole.
Preferably, the stamping device comprises a hydraulic cylinder and a lifting block, the hydraulic cylinder is fixedly arranged on a top plate of the rack, and the output end of the hydraulic cylinder faces downwards; the side walls of the left side and the right side of the lifting block are provided with sliding blocks, and the sliding blocks are in sliding fit with vertical sliding rails fixedly arranged on a left side plate and a right side plate of the frame; the top of the lifting block is fixedly connected with the output end of the hydraulic cylinder, and the bottom of the lifting block is provided with a punching assembly;
the top of the mounting seat plate is provided with a first positioning lug which protrudes upwards, the first positioning lug is in a trapezoid table shape, the lifting block is provided with a first assembling groove matched with the first positioning lug, and the first positioning lug is positioned in the first assembling groove; and a plurality of third connecting holes are uniformly formed in the two sides of the mounting seat plate and are connected with the lifting block through fastening bolts penetrating through the third connecting holes.
Preferably, the cross section of the female die is T-shaped, the lower surface of the T-shaped head of the female die is an inclined surface inclined downwards towards the middle, a second assembling groove matched with the female die is arranged on the workbench, and the female die is positioned in the second assembling groove; a plurality of fourth connecting holes are uniformly formed in the two sides of the female die, and the female die is connected with the workbench through fastening bolts penetrating through the fourth connecting holes; the middle part of the female die is provided with a plurality of forming through holes corresponding to the positioning grooves on the mounting seat plate, and the forming through holes are matched with the impact section of the punch.
Preferably, the depth of the positioning groove is at least 1 CM.
Preferably, the conveying device comprises driving conveying rollers and a top carrier roller, two driving conveying rollers which rotate synchronously are arranged between a left side plate and a right side plate at the front end and the rear end of the rack respectively, the driving conveying rollers are the same in height, and the bottoms of the driving conveying rollers are higher than the upper surface of the workbench; a top carrier roller is arranged below the two driving conveying rollers positioned at the foremost end and the rearmost end, and the strip-shaped steel plate is positioned between the driving conveying rollers and the top carrier roller; vertical strip-shaped abdicating holes are formed in the left side plate and the right side plate opposite to the two ends of the top carrier roller, and the two ends of the top carrier roller extend out of the left side plate and the right side plate through the abdicating holes and are connected with the elastic jacking assembly;
when the punching assembly of the punching device moves downwards, the strip-shaped steel plate can be driven to move downwards to overcome the upper jacking elasticity of the elastic jacking assembly, so that the strip-shaped steel plate is far away from the driving conveying roller and is attached to the upper surface of the workbench; when stamping device's punching component moved up, elasticity jacking subassembly can drive the top bearing roller and move up to make the bar steel sheet keep away from the workstation, and press from both sides tightly and form the transport between initiative conveying roller and top bearing roller.
Preferably, the elastic jacking assembly comprises a vertical guide rod and a [ -shaped mounting plate, the lower end of the guide rod is fixedly arranged on a bottom plate of the rack, and the upper end of the guide rod is provided with a limiting disc; the opening of the mounting plate faces outwards, rod holes matched with the guide rods are correspondingly arranged on the top edge and the bottom edge of the mounting plate, and the mounting plate is sleeved outside the guide rods through the rod holes; the middle section of the guide rod is provided with a large-size resisting piece, and a section of the guide rod, which is positioned between the top edge of the mounting plate and the resisting piece, is also sleeved with a jacking spring; the bearing is installed at the center of mounting panel upper portion, the top bearing roller is worn to establish in the bearing.
Preferably, each mounting plate is provided with two guide rods, and the two guide rods are symmetrically distributed on two sides of the mounting plate.
Preferably, an external thread is arranged outside the guide rod below the jacking spring, and the resisting piece is sleeved outside the guide rod and is in threaded connection with the guide rod.
Preferably, the work tables at two sides of the female die are respectively provided with a side hole, and the rack bottom plate corresponding to the side holes is provided with an elastic supporting rod; the elastic supporting rod comprises a vertical sleeve and a top rod matched with the sleeve; the lower end of the sleeve is fixed on a bottom plate of the rack, an adjusting opening is formed in the side wall of the bottom of the sleeve, an adjusting top block is arranged in the sleeve above the adjusting opening, the adjusting top block is in threaded fit with the inner wall of the sleeve, and a screwing column is arranged in the center of the bottom of the adjusting top block; the upper end of ejector pin is provided with the bull's eye ball, and the lower extreme wears to establish in the sleeve from top to bottom, and has set gradually elastomeric element and cushion from top to bottom between ejector pin lower extreme and the regulation kicking block.
Preferably, the lifting blocks at the front side and the rear side of the punching assembly are also provided with pressing assemblies, each pressing assembly comprises a vertical pressing rod, each lifting block is provided with a guide hole matched with the corresponding pressing rod, and the pressing rods penetrate through the guide holes and are in sliding fit with the guide holes; the upper end of the pressing rod is provided with a limiting head, and the lower end of the pressing rod is provided with a pressing disc; a pressing spring is sleeved outside a section of the pressing rod between the pressing disc and the lifting block; and a contact rubber layer is arranged on the bottom surface of the pressing disc.
The beneficial effects of the invention are concentrated and expressed as follows:
1. the installation section of drift adopts "pi" font structure to set up in the constant head tank, the stability of installation is good.
2. The special structure between the punch mounting section and the positioning groove increases the area of stress transfer, reduces local pressure, and greatly reduces the risk of damage to the punch and the mounting seat plate.
3. The convenience carries out quick change to the drift, can adapt to the demand of punching a hole of various differences, and flexibility and commonality are stronger.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the structure shown in FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic view of the internal structure of the elastic support rod;
FIG. 5 is a schematic view of the punch assembly prior to assembly;
fig. 6 is a schematic structural view of the female mold.
FIG. 7 is a schematic view of the installation of a waste collection channel;
fig. 8 is a schematic structural diagram of the material pushing plate.
Detailed Description
In connection with a lath punching machine with easy punch replacement as shown in fig. 1-8, the present invention is mainly composed of three major parts, including a frame, a conveying device and a punching device, as in the conventional punching machine. The machine frame is used for installing the subsections of the invention, the conveying device is used for conveying the workpiece, and the punching device and the conveying device are cooperated to punch the workpiece in the conveying process. Naturally, the invention may also include an industrial personal computer for overall controlling the punching frequency, the conveying speed and the like of the punching machine, and since the industrial personal computer of the punching machine is a mature product in the market at present, the invention does not describe the industrial personal computer in detail, and a designer can select and match a suitable industrial personal computer, namely a control system according to actual needs.
As shown in fig. 1 and 2, the housing of the present invention is enclosed by a bottom plate 1, a left side plate 2, a right side plate 3, and a top plate 4. Set up workstation 5 in the frame, workstation 5 is installed on bottom plate 1 through support post 6 is maked somebody a mere figurehead, and the middle part of workstation 5 sets up die 7, sets up shaping through-hole 52 on die 7, the top surface of die 7 is neat high with the top surface of workstation 5, ensures to be received to dash peripheral part formation effectual support in the in-process workstation 5 that punches a hole to the work piece, prevents that the too big phenomenon such as burr, overlap that causes of work piece deflection. The punching device is installed on the top plate 4, and the punching assembly 36 of the punching device is opposite to the die 7, the punching device of the invention can adopt various existing forms such as hydraulic type, pneumatic type, mechanical type, etc., for easy understanding, the hydraulic type is taken as an example here: as shown in fig. 2, the punching device includes a hydraulic cylinder 33 and a lifting block 34, the hydraulic cylinder 33 is fixedly disposed on the top plate 4 of the frame, and the output end faces downward. The side walls of the left side and the right side of the lifting block 34 are provided with sliding blocks, and the sliding blocks and vertical sliding rails 35 fixedly arranged on the left side plate 2 and the right side plate 3 of the rack form sliding fit so as to improve stability. The top of the lifting block 34 is fixedly connected with the output end of the hydraulic cylinder 33, and the bottom of the lifting block 34 is provided with a punching component 36.
In the work engineering, the strip steel plate 0 is positioned between the female die 7 and the punching assembly 36 and intermittently moves from the front end to the rear end of the rack under the conveying of the conveying device, and the punching assembly 36 of the punching device presses down to punch the strip steel plate 0 in the intermittent period of conveying of the strip steel plate 0. In other words, under the coordination of the industrial personal computer, the conveying device gradually conveys each section of the strip steel plate 0 to a position between the punching assembly 36 of the punching device and the female die 7, and the punching assembly 36 of the punching device descends to be matched with the female die 7 to punch the workpiece.
Compared with the traditional punching machine, the invention mainly improves the punching machine from the following three aspects to solve the problems existing in the practical use of the punching machine, so that the punching machine has more excellent comprehensive performance: the method comprises the steps of firstly, the cooperation of workpiece conveying and punching, secondly, the installation mode of a punch and thirdly, the removal of waste. The improvement of the three main aspects of the invention can be independently applied to the existing conventional punching machine, of course, the invention can also be combined in pairs, even all the improvements can be applied to the traditional punching machine.
In terms of the cooperation of the workpiece conveying and punching of the first aspect:
the invention mainly relates to an improvement of a conveying device, which comprises a driving conveying roller 8 and a top supporting roller 9, wherein the driving conveying roller 8 rotates actively and is used for providing power for feeding a workpiece, and the top supporting roller 9 rotates passively, and is mainly used for clamping the workpiece between the driving conveying roller 8 and the top supporting roller 9 and providing enough pressing force so as to cooperate with the driving conveying roller 8 to convey the workpiece. Two driving conveying rollers 8 which rotate synchronously are arranged between the left side plate 2 and the right side plate 3 at the front end and the rear end of the rack respectively, as shown in fig. 2, the number of the driving conveying rollers 8 is 4, the number of the driving conveying rollers is two, the number of the driving conveying rollers can be more, a plurality of the driving conveying rollers 8 can convey workpieces synchronously, and the stability is better. The height of each active transport roller 8 is the same, and the bottom is higher than the upper surface of the table 5, and the height is usually between 3 CM and 10CM, preferably about 5 CM.
Two driving conveying rollers 8 positioned at the foremost end and the rearmost end are respectively provided with a top carrier roller 9 below, and the strip-shaped steel plate 0 is positioned between the driving conveying rollers 8 and the top carrier rollers 9 in the conveying process. The jacking roller 9 adopts a liftable structure, which means that the height of the jacking roller 9 can be adjusted up and down, the jacking roller is matched with the driving conveying roller 8 to finish conveying when rising, a workpiece is separated from the driving conveying roller 8 when falling, and the jacking roller 9 only plays a role in supporting the workpiece. Specifically, as shown in fig. 1, 2 and 3, the left side plate 2 and the right side plate 3 opposite to each other at two ends of the top idler 9 are provided with vertical strip-shaped abdicating holes 10, the top idler 9 of the present invention is not directly installed on the side plate of the rack, and the abdicating holes 10 are used for reserving a space for the lifting of the top idler 9. Two ends of the top carrier roller 9 extend out of the left side plate 2 and the right side plate 3 through the abdicating hole 10 and are connected with an elastic jacking component 19. The elastic member 19 functions to mount the top idler 9 and provide an upward urging force to the top idler 9. When the punching assembly 36 of the punching device moves downwards, the strip steel plate 0 can be driven to overcome the upward jacking elasticity of the elastic jacking assembly 19 and move downwards, so that the strip steel plate 0 is far away from the driving conveying roller 8 and is attached to the upper surface of the workbench 5 to punch. When the punching assembly 36 of the punching device moves upwards, namely, when the punching assembly 36 returns, the elastic jacking assembly 19 can drive the jacking roller 9 to move upwards, so that the strip-shaped steel plate 0 is far away from the workbench 5 and is clamped between the driving conveying roller 8 and the jacking roller 9 to form conveying.
Therefore, the conveying and stamping of the workpiece are carried out at different height positions, the sliding contact of the workpiece with the workbench and the female die is avoided, and the workpiece can be effectively prevented from being damaged. 2. The workpieces are synchronously conveyed by the plurality of active conveying rollers, so that the stability of the workpieces in the feeding process is ensured, and the punching machine is particularly suitable for punching of strip-shaped plates. 3. The traditional conveying mechanism has a long guide rail, so that the length of the whole machine is large; the whole layout of the invention is more compact and exquisite, and the floor area of the equipment is reduced.
The elastic jacking assembly 19 of the present invention has more specific structures, for example: the simplest elastic jacking assembly 19 can be just two groups of springs and bearing seats, the bearing seats are arranged at the top ends of the springs, the end parts of the jacking rollers 9 are arranged in the bearing seats through the bearings, and the springs are used for directly providing jacking elastic force for the bearing seats. However, in order to improve the stability of the elastic jacking assembly 19, as shown in fig. 3, the elastic jacking assembly 19 comprises a vertical guide rod 11 and a [ -shaped mounting plate 12, the lower end of the guide rod 11 is fixedly arranged on the bottom plate 1 of the rack, and the upper end of the guide rod is provided with a limiting disc 13. The opening of the mounting plate 12 faces outwards, rod holes matched with the guide rods 11 are correspondingly arranged on the top edge and the bottom edge of the mounting plate 12, and the mounting plate 12 is sleeved outside the guide rods 11 through the rod holes. The middle section of the guide rod 11 is provided with a large-sized stop piece 14, and a section of the guide rod 11 located between the top edge of the mounting plate 12 and the stop piece 14 is further sleeved with a jacking spring 15. The center of the upper part of the mounting plate 12 is provided with a bearing, and the top carrier roller 9 is arranged in the bearing in a penetrating way. During punching, the force of the punching assembly 36 on the workpiece is transmitted to the mounting plate 12, and the jacking spring 15 is compressed. After one stroke is finished, namely the punching component 36 is lifted, the jacking spring 15 extends to jack the jacking roller 9, the workpiece is tightly attached to the driving conveying roller 8, and the driving conveying roller 8 rotates to convey the workpiece.
In order to improve the stability of the elastic jacking assembly 19, two guide rods 11 are arranged on each mounting plate 12, and the two guide rods 11 are symmetrically distributed on two sides of the mounting plate 12. In addition, it is preferable that an external thread is disposed outside the guide rod 11 below the jacking spring 15, and the stopper 14 is sleeved outside the guide rod 11 and is in threaded connection with the guide rod 11. That is, the stop member 14 is not fixed, but can be adjusted up and down along the guide rod 11, so that the elastic jacking component 19 can generate enough jacking elasticity for workpieces with different plate thicknesses along with the change of the compression stroke of the jacking spring 15, and stable conveying is ensured.
Because the supporting force for the workpiece is mainly provided by two supporting rollers 9, for some workpieces with larger thickness, because the weight of the workpiece is larger, the workpiece positioned between the two supporting rollers 9 needs to be supported in an auxiliary manner, as shown in fig. 2, it is better to arrange a side hole 17 on each of the work tables 5 on both sides of the female die 7, and an elastic supporting rod 18 is arranged on the frame bottom plate 1 corresponding to the side hole 17. As shown in fig. 4, the elastic support rod 18 includes a vertical sleeve 20 and a top rod 21 engaged with the sleeve 20. The lower end of the sleeve 20 is fixed on the bottom plate 1 of the rack, an adjusting opening 22 is formed in the side wall of the bottom of the sleeve 20, an adjusting top block 23 is arranged in the sleeve 20 above the adjusting opening 22, the adjusting top block 23 is in threaded fit with the inner wall of the sleeve 20, and a screwing column 24 is arranged in the center of the bottom of the adjusting top block 23. The upper end of the ejector rod 21 is provided with a bull's eye ball 25, the lower end of the ejector rod penetrates through the sleeve 20 from top to bottom, an elastic component 26 and a cushion block 27 are sequentially arranged between the lower end of the ejector rod 21 and the adjusting ejector block 23 from top to bottom, the elastic component 26 can also adopt a spiral spring, and certainly, a plurality of pairs of elastic gaskets can also be adopted as shown in fig. 4. In punching, the force of the punching assembly 36 on the workpiece is transmitted to the ejector pin 21, and the elastic member 26 is compressed. After the end of a stroke, i.e. during the lifting of the punching assembly 36, the elastic element 26 lifts the ejector pin 21, and the ejector pin 21 pushes the workpiece against the active feed roller 8.
On this basis, in order to further improve the performance of the present invention, it is preferable that, as shown in fig. 2, the lifting blocks 34 on the front side and the rear side of the punching assembly 36 are further provided with a pressing assembly, the pressing assembly includes a vertical pressing rod 37, the lifting block 34 is provided with a guide hole matched with the pressing rod 37, and the pressing rod 37 is inserted into the guide hole and forms a sliding fit with the guide hole. The upper end of the pressing rod 37 is provided with a limiting head 38, and the lower end is provided with a pressing plate 39. The pressing spring 40 is sleeved on the section of the pressing rod 37 between the pressing plate 39 and the lifting block 34, but the rigidity of the pressing spring 40 should be greater than that of the jacking spring 15 of the elastic jacking assembly 19. The bottom surface of the pressing plate 39 is provided with a contact rubber layer. The pressing assembly is used for pressing the workpiece onto the workbench in advance and playing a role of pressing the workpiece, so that the two ends of the workpiece are prevented from being upwarped in the punching process. The working principle of the punching machine is that the lifting block 34 descends to drive the pressing rod 37 to descend, the pressing rod 37 firstly contacts with a workpiece and presses the workpiece to move downwards, after the workpiece is pressed on the workbench, the lifting block 34 descends continuously, the pressing spring 40 is compressed, and the punching assembly 36 descends continuously to punch holes on the workpiece.
Regarding the installation manner of the driving feed roller 8, as shown in fig. 1, in general, both ends of the driving feed roller 8 according to the present invention are respectively installed on the left side plate 2 and the right side plate 3 of the frame through bearings, and a synchronizing wheel 28 is provided at an end of one end of the driving feed roller 8. The synchronizing wheels 28 of the driving conveying rollers 8 are in transmission connection through a synchronous belt 29, the synchronizing wheel 28 of one driving conveying roller 8 is also in transmission connection with a driving gear 31 through a transmission belt 30, and the driving gear 31 is connected with the output end of a stepping motor 32. Of course, other similar ways of driving are possible. For example: a sprocket is provided at an end of the drive feed roller 8, and is synchronously driven by a chain.
In a second aspect of the punch mounting method:
the improvement of the present invention is that the punching assembly 36 includes a mounting base plate 41 fixed on the lifting block 34 and a plurality of punches 42 arranged on the mounting base plate 41, as shown in fig. 5, the number of the punches 42 is 5 in 5, and a row of 5 holes can be punched by one stroke. The number of the punches 42 can be more or less, and the related personnel can be specifically set according to actual requirements. The middle part of installation bedplate 41 bottom surface is provided with along the location arris 43 that installation bedplate 41 length direction extends, the cross-section of location arris 43 is trapezoidal, evenly is provided with a plurality of constant head tanks 44 along the length direction of location arris 43 on the location arris 43, be provided with first connecting hole 45 on the installation bedplate 41 of constant head tank 44 both sides. The depth of the positioning groove 44 of the present invention is preferably at least 1CM, and the larger the depth, the better the positioning effect.
The punch 42 is composed of an installation section 46 and an impact section 47 located at the bottom of the installation section 46, the installation section 46 is in an inverted pi shape and is matched with the positioning groove 44, and a second connecting hole 48 is formed in the installation section 46 corresponding to the first connecting hole 45. The mounting section 46 is clamped in the positioning slot 44 and connected to the mounting base plate 41 through fastening bolts inserted into the first connecting hole 45 and the second connecting hole 48, the structure and mounting manner of the fastening bolts are simple, and the present invention is not shown in the drawings. In the figure, the impact section 47 is cylindrical and can be matched with a forming through hole on a female die to process a round punched hole, and the impact section 47 can also be in other shapes such as an elliptic cylinder shape, a hexagonal cylinder shape and the like.
After the arrangement is adopted, the installation section of the punch head 1 adopts a pi-shaped structure and is arranged in the positioning groove, so that the installation stability is good. 2. The special structure between the punch mounting section and the positioning groove increases the area of stress transfer, reduces local pressure, and greatly reduces the risk of damage to the punch and the mounting seat plate. 3. The convenience carries out quick change to the drift, can adapt to the demand of punching a hole of various differences, and flexibility and commonality are stronger.
On the basis, in order to further improve the flexibility and stability of the installation of the punch of the punching machine, the invention may further better make the top of the installation seat plate 41 be provided with a first positioning lug 49 protruding upwards, the first positioning lug 49 is in a trapezoid table shape, the lifting block 34 is provided with a first assembling groove matched with the first positioning lug 49, and the first positioning lug 49 is positioned in the first assembling groove. A plurality of third connecting holes 50 are uniformly formed in both sides of the mounting base plate 41, and are connected with the lifting block 34 through fastening bolts inserted into the third connecting holes 50. Thus, the present invention allows for quick replacement of the mounting base plate 41 by selecting mounting base plates 41 having different numbers and densities of positioning slots 44.
In addition, the invention also provides a novel mounting structure of the female die 7, as shown in fig. 2 and 6, the cross section of the female die 7 is in a T shape, the lower surface of the T-shaped head of the female die 7 is an inclined surface which slantly inclines downwards towards the middle, a second assembly groove which is matched with the female die 7 is arranged on the workbench 5, and the female die 7 is positioned in the second assembly groove. And a plurality of fourth connecting holes 51 are uniformly formed in two sides of the female die 7, and the female die 7 is connected with the workbench 5 through fastening bolts penetrating through the fourth connecting holes 51. The middle part of the female die 7 is provided with a plurality of forming through holes 52 corresponding to the positioning grooves 44 on the mounting seat plate 41, and the forming through holes 52 are matched with the impact section 47 of the punch 42. Therefore, the female die 7 has better installation stability and can be quickly positioned and installed, meanwhile, the structure of the female die 7 also increases the contact area with the workbench 5, the stress is conveniently dispersed, and the service life of the female die 7 is prolonged.
Third aspect waste material cleaning:
referring to fig. 1, 2, 7 and 8, a waste collecting channel 53 extending along the width direction of the frame is arranged on the bottom plate 1 of the frame below the female die 7, the waste collecting channel 53 is generally formed by two parallel enclosing plates extending along the width direction of the frame, as shown in fig. 7, two ends of the waste collecting channel 53 are communicated with a waste guiding channel 54 extending out of the left side plate 2 and the right side plate 3 of the frame, and the waste guiding channel 54 inclines downwards and slants outwards from the frame, so that waste can slide out conveniently. The scrap collecting channel 53 is provided with a material pushing plate 55, the material pushing plate 55 has a width matched with the scrap collecting channel 53 and can reciprocate along the length direction of the scrap collecting channel 53 under the driving of the driving assembly, the simplest material pushing plate 55 is a flat plate, the width of the material pushing plate 55 is equivalent to that of the scrap collecting channel 53, the material pushing plate can slide along the scrap collecting channel 53, but in order to ensure the stability of the material pushing plate in the sliding process, as shown in fig. 8, the material pushing plate 55 is composed of a main plate 56 and side plates 57 located at both sides of the main plate 56.
The specific structure of the driving assembly is more, for example, the driving assembly may be an electric push rod, a pneumatic telescopic rod, etc., but it is better to practice that the driving assembly is a ball screw pair, a screw of the ball screw pair is arranged above the waste collecting channel 53 and extends along the length direction of the waste collecting channel 53, a nut of the ball screw pair is fixed at the center of the top of the main plate 56, and the ball screw pair is driven by a pushing motor. When the pushing device works, the pushing motor drives the lead screw, the lead screw drives the nut to slide, and then the pushing plate 55 is driven to slide.
Through the arrangement, the punching machine 1 can quickly and automatically collect waste materials generated by punching, improves the automation level and reduces the labor intensity of workers. 2. The artificial participation is not needed, and the probability of safety accidents is fundamentally eliminated. 3. The scraping wings can push out all the waste materials in the waste material collecting channel, and the waste material collecting effect is good. 4. The operation is stable, and the failure rate is low.
Claims (5)
1. A strip steel plate punching machine convenient for replacing a punch comprises a frame, a conveying device and a punching device;
the method is characterized in that: the machine frame is formed by enclosing a bottom plate (1), a left side plate (2), a right side plate (3) and a top plate (4), a workbench (5) is arranged in the machine frame, the workbench (5) is installed on the bottom plate (1) through a supporting upright post (6), a concave die (7) is arranged in the middle of the workbench (5), and the top surface of the concave die (7) is flush with the top surface of the workbench (5); the punching device is arranged on the top plate (4), and a punching assembly (36) of the punching device is opposite to the female die (7); the strip-shaped steel plate (0) is positioned between the female die (7) and the punching assembly (36), and intermittently moves from the front end to the rear end of the rack under the conveying of the conveying device, and the punching assembly (36) of the punching device downwards presses in the intermittent period of the conveying of the strip-shaped steel plate (0) to punch the strip-shaped steel plate (0);
the punching assembly (36) comprises an installation seat plate (41) fixed on a lifting block (34) of the punching device and a plurality of punches (42) arranged on the installation seat plate (41), a positioning ridge (43) extending along the length direction of the installation seat plate (41) is arranged in the middle of the bottom surface of the installation seat plate (41), the cross section of the positioning ridge (43) is trapezoidal, a plurality of positioning grooves (44) are uniformly arranged on the positioning ridge (43) along the length direction of the positioning ridge (43), and first connecting holes (45) are formed in the installation seat plate (41) on two sides of each positioning groove (44); the punch (42) is composed of an installation section (46) and an impact section (47) located at the bottom of the installation section (46), the installation section (46) is in an inverted pi shape and is matched with the positioning groove (44), and a second connecting hole (48) is formed in the installation section (46) corresponding to the first connecting hole (45); the mounting section (46) is clamped in the positioning groove (44) and is connected with the mounting seat plate (41) through fastening bolts penetrating through the first connecting hole (45) and the second connecting hole (48);
the conveying device comprises driving conveying rollers (8) and jacking rollers (9), two driving conveying rollers (8) which rotate synchronously are arranged between a left side plate (2) and a right side plate (3) at the front end and the rear end of the rack respectively, the heights of the driving conveying rollers (8) are the same, and the bottoms of the driving conveying rollers are higher than the upper surface of the workbench (5); a top carrier roller (9) is arranged below the two driving conveying rollers (8) positioned at the foremost end and the rearmost end, and the strip-shaped steel plate (0) is positioned between the driving conveying rollers (8) and the top carrier roller (9); vertical strip-shaped abdicating holes (10) are formed in the left side plate (2) and the right side plate (3) opposite to the two ends of the top carrier roller (9), and the two ends of the top carrier roller (9) extend out of the left side plate (2) and the right side plate (3) through the abdicating holes (10) and are connected with an elastic jacking assembly (19);
when the punching assembly (36) of the punching device moves downwards, the strip-shaped steel plate (0) can be driven to overcome the upper jacking elasticity of the elastic jacking assembly (19) and move downwards, so that the strip-shaped steel plate (0) is far away from the driving conveying roller (8) and is attached to the upper surface of the workbench (5); when a punching assembly (36) of the punching device moves upwards, the elastic jacking assembly (19) can drive the jacking roller (9) to move upwards so as to enable the strip-shaped steel plate (0) to be far away from the workbench (5) and clamped between the driving conveying roller (8) and the jacking roller (9) to form conveying;
the elastic jacking assembly (19) comprises a vertical guide rod (11) and a [ -shaped mounting plate (12), the lower end of the guide rod (11) is fixedly arranged on the bottom plate (1) of the rack, and the upper end of the guide rod is provided with a limiting disc (13); the opening of the mounting plate (12) faces outwards, rod holes matched with the guide rod (11) are correspondingly arranged on the top edge and the bottom edge of the mounting plate (12), and the mounting plate (12) is sleeved outside the guide rod (11) through the rod holes; a large-size stop piece (14) is arranged at the middle section of the guide rod (11), and a jacking spring (15) is sleeved outside a section of the guide rod (11) between the top edge of the mounting plate (12) and the stop piece (14); a bearing is arranged in the center of the upper part of the mounting plate (12), and the top carrier roller (9) penetrates through the bearing;
external threads are arranged outside the guide rod (11) below the jacking spring (15), and the abutting piece (14) is sleeved outside the guide rod (11) and is in threaded connection with the guide rod (11);
the stamping device comprises a hydraulic cylinder (33) and a lifting block (34), wherein the hydraulic cylinder (33) is fixedly arranged on a top plate (4) of the rack, and the output end of the hydraulic cylinder faces downwards; the side walls of the left side and the right side of the lifting block (34) are provided with sliding blocks, and the sliding blocks are in sliding fit with vertical sliding rails (35) fixedly arranged on a left side plate (2) and a right side plate (3) of the frame; the top of the lifting block (34) is fixedly connected with the output end of the hydraulic cylinder (33), and the bottom of the lifting block (34) is provided with a punching assembly (36);
the top of the mounting seat plate (41) is provided with a first positioning bump (49) protruding upwards, the first positioning bump (49) is in a trapezoid table shape, the lifting block (34) is provided with a first assembling groove matched with the first positioning bump (49), and the first positioning bump (49) is positioned in the first assembling groove; a plurality of third connecting holes (50) are uniformly formed in the two sides of the mounting seat plate (41) respectively and are connected with the lifting block (34) through fastening bolts penetrating through the third connecting holes (50);
the punching assembly (36) is characterized in that the lifting blocks (34) on the front side and the rear side of the punching assembly (36) are respectively provided with a pressing assembly, the pressing assembly comprises a vertical pressing rod (37), the lifting blocks (34) are provided with guide holes matched with the pressing rod (37), and the pressing rod (37) penetrates through the guide holes and is in sliding fit with the guide holes; the upper end of the pressing rod (37) is provided with a limiting head (38), and the lower end is provided with a pressing disc (39); a pressing spring (40) is sleeved outside a section of the pressing rod (37) between the pressing plate (39) and the lifting block (34); and a contact rubber layer is arranged on the bottom surface of the pressing plate (39).
2. The strip steel plate punching machine facilitating punch replacement according to claim 1, wherein: the cross section of the female die (7) is T-shaped, the lower surface of the T-shaped head of the female die (7) is an inclined surface which slantly and downwardly inclines towards the middle, a second assembly groove matched with the female die (7) is formed in the workbench (5), and the female die (7) is positioned in the second assembly groove; a plurality of fourth connecting holes (51) are uniformly formed in two sides of the female die (7) respectively, and the female die (7) is connected with the workbench (5) through fastening bolts penetrating through the fourth connecting holes (51); the middle part of the female die (7) is provided with a plurality of forming through holes (52) corresponding to the positioning grooves (44) on the mounting seat plate (41), and the forming through holes (52) are matched with the impact sections (47) of the punch heads (42).
3. The strip steel plate punching machine facilitating punch replacement according to claim 2, wherein: the depth of the positioning groove (44) is at least 1 CM.
4. The strip steel plate punching machine facilitating punch replacement according to claim 3, wherein: each mounting panel (12) is last all to be provided with two guide bar (11), and two guide bar (11) bilateral symmetry distribution at mounting panel (12).
5. The strip steel plate punching machine facilitating punch replacement according to claim 4, wherein: the workbench (5) at two sides of the female die (7) is respectively provided with a side hole (17), and an elastic bearing rod (18) is arranged on the rack bottom plate (1) corresponding to the side holes (17); the elastic supporting rod (18) comprises a vertical sleeve (20) and a top rod (21) matched with the sleeve (20); the lower end of the sleeve (20) is fixed on a bottom plate (1) of the rack, an adjusting opening (22) is formed in the side wall of the bottom of the sleeve (20), an adjusting top block (23) is arranged in the sleeve (20) above the adjusting opening (22), the adjusting top block (23) is in threaded fit with the inner wall of the sleeve (20), and a screwing column (24) is arranged in the center of the bottom of the adjusting top block (23); the upper end of ejector pin (21) is provided with bull's eye ball (25), and the lower extreme from top to bottom wears to establish in sleeve (20), and from top to bottom sets gradually elastomeric element (26) and cushion (27) between ejector pin (21) lower extreme and regulation kicking block (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910324433.5A CN110026476B (en) | 2019-04-22 | 2019-04-22 | Slat piercing press convenient to change drift |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910324433.5A CN110026476B (en) | 2019-04-22 | 2019-04-22 | Slat piercing press convenient to change drift |
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| CN110026476A CN110026476A (en) | 2019-07-19 |
| CN110026476B true CN110026476B (en) | 2021-04-09 |
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| CN201910324433.5A Expired - Fee Related CN110026476B (en) | 2019-04-22 | 2019-04-22 | Slat piercing press convenient to change drift |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110509349B (en) * | 2019-08-27 | 2021-02-19 | 苏州骏创汽车科技股份有限公司 | Punching device for automotive plastic interior trim injection molding part |
| CN110802161A (en) * | 2019-11-15 | 2020-02-18 | 义乌市创伟电器机械有限公司 | Steel plate punching device capable of automatically replacing punch |
| CN111957810B (en) * | 2020-07-08 | 2022-04-01 | 四川晶辉半导体有限公司 | Punching and stacking equipment for optocoupler supports |
| CN112317601A (en) * | 2020-11-16 | 2021-02-05 | 张中海 | Punching equipment for automobile fender |
| CN115041583A (en) * | 2022-08-12 | 2022-09-13 | 苏州贵彦精工技术有限公司 | A processing stamping equipment for panel beating |
| CN115608846B (en) * | 2022-12-05 | 2023-03-10 | 山东工程职业技术大学 | Machining punching machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06548A (en) * | 1992-06-18 | 1994-01-11 | Watanabe Kogyo Kk | Punching machine |
| CN204975095U (en) * | 2015-08-19 | 2016-01-20 | 北京汽车研究总院有限公司 | Bullet top mechanism and mould structure |
| CN207386282U (en) * | 2017-10-10 | 2018-05-22 | 新昌县回山镇星通机械配件经营部 | A kind of punching apparatus of metal product processing |
| CN207857612U (en) * | 2017-12-31 | 2018-09-14 | 苏州通锦精密工业股份有限公司 | The decompressor of aluminium section bar production line |
| CN208133109U (en) * | 2018-01-05 | 2018-11-23 | 金华市安安文教用品有限公司 | A kind of adjustable berth away from punch structure |
| CN208116542U (en) * | 2018-01-31 | 2018-11-20 | 湖北鲲腾新能源科技有限公司 | A kind of punching machine being conveniently replaceable formed punch |
| CN108515109A (en) * | 2018-03-30 | 2018-09-11 | 宁波高新区新柯保汽车科技有限公司 | Autobody sheet hole punched device |
| CN108787856A (en) * | 2018-06-23 | 2018-11-13 | 蔡燕 | A kind of continuously punched mechanism of aluminium |
| CN109622709A (en) * | 2018-10-23 | 2019-04-16 | 四川九洲电器集团有限责任公司 | Sheet metal bulge molding machine |
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Effective date of registration: 20210323 Address after: 312000 room 15, unit 0, Jindi Garden commercial building, 666 Gaoxin Avenue, Sanjie Town, Shengzhou City, Shaoxing City, Zhejiang Province Applicant after: SHENGZHOU RUIQIANG AUTOMATION EQUIPMENT Co.,Ltd. Address before: 312000 No.28 Ruokeng village, Beizhang Town, Shengzhou City, Shaoxing City, Zhejiang Province Applicant before: Yu Xingzheng |
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